I've upgraded to 1.8.0-1 and the problem with the password field is still present.
Trying to apt-get source mutt/unstable, I've obtained what claims to be neomutt-20170306, but despite the changelog entry, the patch does not include the change to account.h and the size of the pass field. See: https://github.com/neomutt/neomutt/blob/neomutt-20170306/account.h#L47 However, account.h is still sizing pass to 128ch: mutt-1.8.0$ ag 'pass\[128\]' account.h 47: char pass[128]; mutt-1.8.0$ And there is no mention of 256ch-sized pass field anywhere, including patchfiles: mutt-1.8.0$ ag 'pass\[256\]' mutt-1.8.0$ Is debian/patches/neomutt-20170306.patch correctly updated?